Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Archery Accuracy0.018711213428%7.2Harden
Average Character0.0053792154641%1.9Easyen
Black and White0.1359235015544%5.0Mediumen
Circle Bounce0.0020018010156%4.6Mediumen
Diagonals0.0018531856636%6.0Harden
Dorm Room Divide0.03580127216213%7.0Harden
Double Password0.0053858219957%1.6Easyen
Fail Them All!0.0089943110324%8.3Harden
Hopscotch 5000.1187858713122%7.5Harden
Overdraft0.0052661109641%2.3Easyen
Problem Set Construction0.01940553462%7.0Harden
Reversibly Cyclic Strings0.00558426846%3.4Mediumen
Rise and Fall0.008890123426%4.6Mediumen
Scaling Recipe0.005168578547%1.9Easyen
Shortest Missing Subsequences0.098862899834%5.5Harden
Square Bounce0.005031345037%5.3Mediumen
Tetris Generation0.0090112628725%5.8Harden
Tournament Seeding0.0333046320745%4.1Mediumen
Tree Hopping0.0289385726631%6.3Harden
Who Goes There?0.00119106335633%4.1Mediumen
XOR Island0.002912198840%6.7Harden